Civil preparedness · 72 hours
Power outage and blackouts

Power outage and blackouts

Fridge, heating, cash, elevators, and medication: how to get through days without electricity without ruining anything important.

Read the full guide Download PDF (free) fridge · cold/heat · cash · elevator · medication

Power outage is the most likely emergency

Every year there are thousands of blackouts due to storms, breakdowns, or grid overload. Most last hours, but a DANA or a strong storm can leave neighborhoods without power for several days. It's the cheapest catastrophe to prepare for and the one you notice the most.

Fridge and freezer: the 4-hour rule

  • DO NOT open the fridge: closed, it keeps the cold for 4 hours; a full freezer, 24-48 hours.
  • Write down the order of consumption: first the fridge items (dairy, meat, fish), then the freezer items.
  • Fill water bottles and freeze them before a storm warning: as they thaw, they keep the cold and provide drinking water.
  • If meat thaws and has been at room temperature for more than 2 hours: throw it away.
  • When in doubt, throw it out: food poisoning during a blackout is preventable and worse than losing food.

Heat and cold without electricity

  • Winter: dress in layers (3 thin layers > 1 thick one), blankets, and gather in ONE room.
  • NEVER use braziers, stoves, or generators indoors: risk of fire and carbon monoxide poisoning (invisible and deadly).
  • Summer: lower blinds during the day, ventilate at night, use damp cloths, hydrate more.
  • Hot water in the tank lasts 24-48 h: use it wisely (hygiene first).

What gets forgotten when there's no power

  • Cash: without power, card terminals don't work (ATMs do, for a while).
  • Elevators: if you live on a high floor, prepare a light backpack to take the stairs.
  • Water: electric wells and pressure pumps stop providing water; store it in advance.
  • Medication that needs refrigeration: emergency plan (portable cooler, ice).
  • Pacemakers and medical devices: know your equipment's battery life and call 112 if it fails.
  • Chargers: full power bank, car charger (the car is a generator).
  • Fridge: turn the thermostat to maximum before a blackout warning.
  • Electric blinds: learn to operate them manually or have a plan (square key).
  • Lights: one flashlight per person and key room; candles ONLY with supervision.
  • Battery-powered radio to know when power returns and what's happening.

When power returns

  1. Plug in appliances one by one to avoid overloading the grid.
  2. Check the fridge: if the outage was long, inspect the food before consuming.
  3. Restock the kit (batteries, power bank, candles) immediately: the next outage may come soon.
Carbon monoxide kills without smell or color. Never put a generator, brazier, or stove inside the house, a closed garage, or less than 3-5 m from an open window.
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